I replace all my lights with Xenon bulbs 6000K.
They have a slight blue tint to them when on. And the inner light in the headlight assembly looks blue during the day because the blue color of the bulb is visible in the reflector.
I like them because they really work where they are no street lights. Looks like you've got high beams on without bothering on coming traffic.
Not much light in the city though because the blue color of the light gets washed out by the color of the street lights. But even in the city it looks like an exotic because of the headlights color and light output. My wife thought it was a Lexus the first time I pulled up with my new beams.
The cost are around $40 for a set of 2. I needed six bulbs because Ihave an SE which has fogs. Later tonight I'll take a few pics and post them for you. I also replaced my tails last night so I'll post that also.